/Engine/Plugins/Protocols/MQTT/Source/MQTTCore/Public/MQTTClientObject.h
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="MQTT") void Disconnect ( const [FOnDisconnectDelegate](API\Plugins\MQTTCore\UMQTTClientObject\FOnDisconnectDelegate) & InOnDisconnect )